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1Z0-908 Study Guide Pdf - 1Z0-908 Exam Materials

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Oracle 1Z0-908: MySQL 8.0 Database Administrator exam is an essential certification for database administrators who want to demonstrate their expertise in managing and administering MySQL databases. It is a valuable certification that can help individuals advance their careers in the field of database administration. 1Z0-908 Exam covers a wide range of topics related to MySQL database administration and is based on the latest version of MySQL.

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The Oracle 1Z0-908 Exam covers a wide range of topics, including installation and configuration of MySQL, backup and recovery, performance tuning, security, and replication. Candidates are required to demonstrate their expertise in each of these areas through a combination of multiple-choice questions and scenario-based simulations.

Oracle MySQL 8.0 Database Administrator Sample Questions (Q112-Q117):

NEW QUESTION # 112
You have upgraded the MySQL binaries from 5.7.28 to 8.0.18 by using an in-place upgrade.
Examine the message sequence generated during the first start of MySQL 8.0.18:

Which step or set of steps will resolve the errors?

A. Execute: mysqlcheck --repair mysql columns_priv event proc proxies_priv tables_priv.
B. Go to the <datadir>/mysql directory and execute: myisamchk --update-state columns_priv event proc proxies_priv tables_priv.
C. Remove the redo logs. Replace the MySQL binaries with the 5.7.28 binaries. Prepare the tables for upgrade. Upgrade to 8.0.18 again.
D. Execute: mysqlcheck --check-upgrade mysql columns_priv event proc proxies_priv tables_priv.
E. Start mysqld again using the --upgrade=FORCE option.

Answer: E

NEW QUESTION # 113
Examine this statement and output:

Which two SQL statements can jsmith execute? (Choose two.)

A. UPDATE world.country SET Name=CONCAT('New ',Name);
B. UPDATE world.country SET Name='first' ORDER BY Name LIMIT
C. UPDATE world.country SET Name='all';
D. UPDATE world.country SET Name='one' LIMIT 1;
E. UPDATE world.country SET Name='new' WHERE Name='old';

Answer: C,E

NEW QUESTION # 114
You must run multiple instances of MySQL Server on a single host.
Which three methods are supported? (Choose three.)

A. Run mysqldwith --datadirdefined for each instance.
B. Run MySQL Server docker containers.
C. Start mysqldor mysqld_safeusing different option files for each instance.
D. Use system tools to lock each instance to its own CPU.
E. Use resource groups to lock different instances on separate CPUs.
F. Use systemdwith different settings for each instance.

Answer: A,C,F

Explanation:
Explanation/Reference:

NEW QUESTION # 115
You have just installed MySQL on Oracle Linux and adjusted your /etc/my.cnf parameters to suit your installation.
Examine the output:

What statement is true about the start attempt?

A. MySQL server was not started due to a problem while executing process 2732.
B. MySQL server continued to start up even though another process existed.
C. systemd waited for 30 seconds before timing out and start up failed.
D. systemd attempted to start mysqld, found another systemd mysqld process running, and shut it down.
E. systemd found the mysqld service disabled and failed to start it.

Answer: D

NEW QUESTION # 116
Four nodes are configured to use circular replication.
Examine these configuration parameters for each node:

Which statement is true?

A. Increasing slave_parallel_workers will improve high availability.
B. Setting slave_parallel_type=DATABASE won't work for circular replication; it should be set to LOGICAL_CLOCK.
C. Setting slave_preserve_commit_order to on will improve data consistency.
D. Each slave thread is responsible for updating a specific database.
E. Cross-database constraints can cause database inconsistency.
F. Setting transaction_allow_batching to on will improve data consistency.

Answer: C

NEW QUESTION # 117
......

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